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The pulsed-flow design: A new low-cost solar collector

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  • Juanicó, Luis
  • Dilalla, Nicolás

Abstract

A new pulsed-flow design of hose-based solar collector is presented, which uses a long hose connected to district-grid water in the same way that the basic hose design does. But on contrary that this last, here the exit is not connected directly to consumption and instead the hot water flow is controlled by a thermostat that purges the hose to an insulated tank every time it reaches the desired temperature. So, this water-pond collector works close its maximum efficiency along the day and minimizes nocturnal cooling effect, improving noticeably the performance of the original hose design. As was demonstrated by thermal modeling, this new pulsed-flow design could satisfy the domestic demand of sanitary hot water even in high-latitude locations and furthermore, its performance could be noticeably improved by adding a smart microcontroller. The economic analysis shows this design could be highly competitive applied to large hot-water demands and relatively good for single family demands.

Suggested Citation

  • Juanicó, Luis & Dilalla, Nicolás, 2016. "The pulsed-flow design: A new low-cost solar collector," Renewable Energy, Elsevier, vol. 87(P1), pages 422-429.
    • Handle: RePEc:eee:renene:v:87:y:2016:i:p1:p:422-429
    DOI: 10.1016/j.renene.2015.10.042
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    References listed on IDEAS

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    1. Righini, R. & Grossi Gallegos, H. & Raichijk, C., 2005. "Approach to drawing new global solar irradiation contour maps for Argentina," Renewable Energy, Elsevier, vol. 30(8), pages 1241-1255.
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    Cited by:

    1. Fekete, István & Farkas, István, 2019. "Numerical and experimental study of building integrated solar tile collectors," Renewable Energy, Elsevier, vol. 137(C), pages 45-55.
    2. Barbosa, Eloiny Guimarães & Araujo, Marcos Eduardo Viana de & Lopes, Roberto Precci & Martins, Marcio Arêdes & Moraes, Maria Joselma de & Barbosa, Elisa Guimarães & Falconí, Javier Hernán Heredia, 2020. "Exergetic, economic and environmental (3E) analysis of a low cost solar heater in different configurations," Renewable Energy, Elsevier, vol. 160(C), pages 1096-1104.
    3. Juanicó, Luis E. & Di Lalla, Nicolás & González, Alejandro D., 2017. "Full thermal-hydraulic and solar modeling to study low-cost solar collectors based on a single long LDPE hose," Renewable and Sustainable Energy Reviews, Elsevier, vol. 73(C), pages 187-195.

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